Hollow leveler oil cylinder structure

Abstract

The utility model relates to a hollow leveler oil cylinder structure which comprises an upper box body, a lower box body, a stand column, an upper roller set, a lower roller set and a hydraulic cylinder. The upper roller group is arranged on the upper box body, and the lower roller group is arranged on the lower box body; a penetrating hole is formed in the end corner of the upper box body, the hydraulic cylinder is located above the penetrating hole, and the bottom of the hydraulic cylinder is fixedly connected with the upper box body. The lower end of the stand column is fixedly connected with the lower box body, and the upper end of the stand column penetrates through the penetrating hole of the upper box body and then is connected with a piston rod of the hydraulic cylinder. The hydraulic cylinder stretches out and draws back to drive the upper box body to press down or lift up. The hydraulic cylinder is arranged at the top end of the upper box body, so that the space of the side face of the leveling machine can be reduced, meanwhile, the hydraulic cylinder can be axially stressed and does not bear unbalance loading force when the leveling machine works, and the service life of the hydraulic cylinder is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of metal sheet processing, in particular to a hollow leveling machine oil cylinder structure. Background Art

[0002] The leveling machine is used to level the rolled plate to obtain a plate with a higher flatness. The principle of the leveling machine mainly includes an upper box, a lower box, an upper roller group, a lower roller group, multiple cylinders and a guide rod assembly. The upper roller group is installed at the lower end of the upper box, and the lower roller group is installed at the upper end of the lower box. The upper roller group and the lower roller group form a leveling channel. The guide rod assembly connects the upper and lower boxes to guide the upper box to move vertically. The cylinder connects the upper and lower boxes to drive the upper box to move relative to the lower box.

[0003] The oil cylinder structure currently used in the leveling machine uses hydraulic oil with hinged ends, and the hydraulic cylinders are hung on the outside of the leveling machine. The leveling machine uses this oil cylinder structure, which has the following defects:

[0004] 1. It takes up a large space. 2. It requires a high strength for the side structure of the leveling machine. 3. The hydraulic cylinder is easily overloaded when working. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a hollow leveling machine oil cylinder structure, and to solve the technical problems that the hydraulic cylinder occupies a large space and the leveling machine is easily subjected to unbalanced load in the previous leveling machine oil cylinder structure.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Provided is a hollow leveling machine oil cylinder structure, comprising:

[0008] Upper box, lower box, column, upper roller group, lower roller group and hydraulic cylinder;

[0009] The upper roller group is arranged on the upper box body, and the lower roller group is arranged on the lower box body;

[0010] A through hole is provided at the end corner of the upper box body, the hydraulic cylinder is located above the through hole, and its bottom is fixedly connected to the upper box body;

[0011] The lower end of the column is fixedly connected to the lower box body, and the upper end of the column is connected to the piston rod of the hydraulic cylinder after passing through the through hole of the upper box body;

[0012] The hydraulic cylinder is extended and retracted to drive the upper box body to press down or lift up.

[0013] Furthermore, the hydraulic cylinder comprises a cylinder body, a cylinder base, a guide sleeve, a guide column and a piston rod;

[0014] The cylinder base is fixed to the bottom of the cylinder body, the guide sleeve is fixed to the top of the cylinder body, the piston part of the piston rod is located in the cylinder body, the rod end of the piston rod extends from the guide sleeve, and the piston rod is a hollow rod structure;

[0015] The guide post is located in the rod cavity of the piston rod, the lower end of the guide post is fixedly connected to the cylinder base, the guide post has a hollow structure, and the outer wall of the guide post forms a sliding seal with the inner wall of the piston part of the piston rod;

[0016] The upright column passes through the guide column and the piston rod in sequence and is fixedly connected with the top end of the piston rod.

[0017] Furthermore, the upper end of the column passes through the piston rod and is connected to a nut;

[0018] A top cap is fixedly arranged on the upper end of the piston rod, and a locking screw is used to fasten the nut and the top cap.

[0019] Furthermore, the top cap is in a T-shaped structure, which includes a cylinder and an end plate. The outer wall of the cylinder is threadedly connected to the rod hole of the piston rod, and the lower end surface of the end plate abuts against the upper end surface of the piston rod.

[0020] Furthermore, a side retaining ring is formed at the lower end of the guide column, a step hole is opened in the cylinder base, the step hole cooperates with the retaining ring, a retaining spring is arranged in the step hole, and the retaining spring abuts against the lower end of the guide column to limit the axial movement of the guide column in the cylinder base.

[0021] The beneficial effects of the utility model are:

[0022] The hollow leveling machine oil cylinder structure of the utility model arranges the hydraulic cylinder at the top of the upper box body, thereby reducing the space on the side of the leveling machine. At the same time, the hydraulic cylinder can be subjected to axial force when the leveling machine is operating without being subjected to eccentric load, and the service life of the hydraulic cylinder is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the utility model leveling machine;

[0025] Figure 2 It is the state diagram of the coordination between the column and the hydraulic cylinder;

[0026] Figure 3 It is a three-dimensional diagram of a hydraulic cylinder;

[0027] Figure 4 It is a half-section diagram of the hydraulic cylinder;

[0028] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0029] Among them, 1, upper box, 2, lower box, 3, column, 11, upper roller group, 21, lower roller group;

[0030] 4. Hydraulic cylinder, 41. Cylinder body, 42. Cylinder base, 43. Guide sleeve, 44. Guide column, 441. Retaining ring, 45. Piston rod;

[0031] 61, top cap, 62, nut;

[0032] 7. Circlip. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The present application provides a hollow leveling machine cylinder structure, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0035] In order to solve the technical problems of the existing leveling machine oil cylinder structure that the hydraulic cylinder 4 occupies a large space and the leveling machine is not easily subjected to unbalanced load, an embodiment of the present application provides a hollow leveling machine oil cylinder structure, which is described in detail below.

[0036] like Figures 1 to 5 As shown, a hollow leveling machine cylinder structure includes

[0037] An upper box body 1, a lower box body 2, a column 3, an upper roller group 11, a lower roller group 21 and a hydraulic cylinder 4;

[0038] The upper roller group 11 is arranged on the upper box body 1, and the lower roller group 21 is arranged on the lower box body 2;

[0039] A through hole is provided at the end corner of the upper box body 1, the hydraulic cylinder 4 is located above the through hole, and its bottom is fixedly connected to the upper box body 1;

[0040] The lower end of the column 3 is fixedly connected to the lower box body 2, and the upper end of the column 3 passes through the through hole of the upper box body 1 and is connected to the piston rod 45 of the hydraulic cylinder 4;

[0041] The hydraulic cylinder 4 extends and retracts to drive the upper box body 1 to press down or lift up.

[0042] In this embodiment, there are four columns 3 and hydraulic cylinders 4, which are distributed at the four end corners of the leveling machine. The upper box body 1 moves vertically through the columns 3. When the hydraulic cylinders 4 are working, the thrust generated directly acts axially on the columns 3, driving the upper box body 1 to move vertically.

[0043] Specifically, as an optional implementation in this embodiment, Figure 3 Figure 4 As shown, the hydraulic cylinder 4 includes a cylinder body 41, a cylinder base 42, a guide sleeve 43, a guide column 44 and a piston rod 45;

[0044] The cylinder base 42 is fixed to the bottom of the cylinder body 41, the guide sleeve 43 is fixed to the top of the cylinder body 41, the piston portion of the piston rod 45 is located in the cylinder body 41, the rod end of the piston rod 45 extends from the guide sleeve 43, and the piston rod 45 is a hollow rod structure;

[0045] The guide post 44 is located in the rod cavity of the piston rod 45, the lower end of the guide post 44 is fixedly connected to the cylinder base 42, the guide post 44 is hollow, and the outer wall of the guide post 44 forms a sliding seal with the inner wall of the piston part of the piston rod 45;

[0046] The upright column 3 passes through the guide column 44 and the piston rod 45 in sequence and is fixedly connected to the top end of the piston rod 45 .

[0047] In this embodiment, the hydraulic cylinder 4 is fixedly connected to the upper end surface of the upper box body 1 through a cylinder base 42 .

[0048] In this embodiment, the piston part and the rod part of the piston rod 45 are an integrated structure, the piston part and the cylinder base 42 are a rodless cavity, and the piston part and the guide sleeve 43 are a rod cavity. When the rodless cavity is filled with oil, the cylinder body 41 and the upper box body 1 move downward, and the upper roller group 11 is close to the lower roller group 21, and the leveling machine performs leveling. When the rod cavity is filled with oil, the cylinder body 41 and the upper box body 1 move upward, and the upper roller group 11 is lifted.

[0049] The sealing ring between the piston portion and the inner wall of the cylinder body 41 is used to ensure that the two form a stable sliding seal.

[0050] A sealing ring is provided between the piston portion and the outer wall of the guide column 44, which is also used to ensure stable sliding sealing between the two.

[0051] In this embodiment, the cylinder base 42 and the bottom of the cylinder body 41 are fixed by welding.

[0052] Specifically, as an optional implementation in this embodiment, Figure 3 Figure 4 As shown, the upper end of the column 3 passes through the piston rod 45 and is connected to the nut 62;

[0053] A top cap 61 is fixedly disposed on the upper end of the piston rod 45 , and a locking screw is used to fasten the nut 62 and the top cap 61 .

[0054] Specifically, as an optional implementation in this embodiment, Figure 4 As shown, the top cap 61 is in a T-shaped structure, which includes a cylinder and an end plate. The outer wall of the cylinder is threadedly connected to the rod hole of the piston rod 45, and the lower end surface of the end plate abuts against the upper end surface of the piston rod 45.

[0055] The upper end of the column 3 is fixedly connected to the upper end of the piston rod 45 by means of a nut 62 and a top cap 61. The connection structure is stable and reliable and suitable for quick disassembly and assembly. The nut 62 is threadedly connected to the column 3, and the top cap 61 is threadedly connected to the piston rod 45, both of which can realize adjustment of the axial position. The nut 62 is then locked and connected to the top cap 61 to ensure that the structure of the guide column 44 and the column 3 is stable and there is no axial clearance or looseness.

[0056] Specifically, as an optional implementation in this embodiment, Figure 5 As shown, a side retaining ring 441 is formed at the lower end of the guide column 44, a step hole is opened in the cylinder base 42, the step hole cooperates with the retaining ring 441, a retaining spring 7 is arranged in the step hole, and the retaining spring 7 abuts against the lower end of the guide column 44 to limit the axial movement of the guide column 44 in the cylinder base 42.

[0057] The retaining spring 7 is a C-shaped retaining spring.

[0058] The lower end of the guide column 44 is clamped with the cylinder base 42 through the retaining ring 441. The retaining ring 441 is used for axial limitation, so that the guide column 44 and the cylinder base 42 can be quickly connected, and the connection structure is stable and reliable.

[0059] The hollow leveling machine oil cylinder structure of the utility model changes the hydraulic cylinder 4 from the previous side installation to the current top installation, thereby preventing the hydraulic cylinder 4 from being subjected to side loads. The hydraulic cylinder 4 is subjected to more stable force and its service life is extended. At the same time, the side space of the leveling machine can be made smaller, reducing the side space.

[0060] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0061] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0063] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0064] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0065] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0066] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A hollow leveling machine cylinder structure, characterized in that: include An upper box body (1), a lower box body (2), a column (3), an upper roller group (11), a lower roller group (21) and a hydraulic cylinder (4); The upper roller group (11) is arranged on the upper box (1), and the lower roller group (21) is arranged on the lower box (2); A through hole is provided at an end corner of the upper box body (1); the hydraulic cylinder (4) is located above the through hole, and its bottom is fixedly connected to the upper box body (1); The lower end of the column (3) is fixedly connected to the lower box body (2), and the upper end of the column (3) passes through the through hole of the upper box body (1) and is connected to the piston rod (45) of the hydraulic cylinder (4); The hydraulic cylinder (4) is extended and retracted to drive the upper box body (1) to press down or lift up.

2. The hollow leveling machine oil cylinder structure according to claim 1 is characterized in that: The hydraulic cylinder (4) comprises a cylinder body (41), a cylinder base (42), a guide sleeve (43), a guide column (44) and a piston rod (45); The cylinder base (42) is fixed to the bottom of the cylinder body (41), the guide sleeve (43) is fixed to the top of the cylinder body (41), the piston portion of the piston rod (45) is located in the cylinder body (41), the rod end of the piston rod (45) extends from the guide sleeve (43), and the piston rod (45) is a hollow rod structure; The guide column (44) is located in the rod cavity of the piston rod (45), the lower end of the guide column (44) is fixedly connected to the cylinder base (42), the guide column (44) has a hollow structure, and the outer wall of the guide column (44) forms a sliding seal with the inner wall of the piston part of the piston rod (45); The upright column (3) passes through the guide column (44) and the piston rod (45) in sequence and is fixedly connected to the top end of the piston rod (45).

3. The hollow leveling machine oil cylinder structure according to claim 2 is characterized in that: The upper end of the column (3) passes through the piston rod (45) and is connected to the nut (62); A top cap (61) is fixedly arranged on the upper end of the piston rod (45), and a locking screw is used to fasten the nut (62) and the top cap (61).

4. The hollow leveling machine oil cylinder structure according to claim 3 is characterized in that: The top cap (61) is in a T-shaped structure, comprising a cylinder and an end plate. The outer wall of the cylinder is threadedly connected to the rod hole of the piston rod (45), and the lower end surface of the end plate abuts against the upper end surface of the piston rod (45).

5. The hollow leveling machine oil cylinder structure according to claim 2 is characterized in that: A side retaining ring (441) is formed at the lower end of the guide column (44), a step hole is provided in the cylinder base (42), the step hole cooperates with the retaining ring (441), a retaining spring (7) is provided in the step hole, and the retaining spring (7) abuts against the lower end of the guide column (44) to limit the axial movement of the guide column (44) in the cylinder base (42).

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